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FAIR VALUE MEASUREMENTS (Fair Value Hierarchy, by Category) (Details) - USD ($) $ in Thousands | Apr. 30, 2017 | Oct. 31, 2016
--- | --- | ---
Deferred Compensation Plans [Abstract] |  |
Deferred compensation plans | $ 112,385 | $ 93,202
Liabilities: |  |
Contingent consideration | 19,671 | 18,881
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] |  |
Deferred Compensation Plans [Abstract] |  |
Deferred compensation plans | 5,998 | 7,148
Liabilities: |  |
Contingent consideration | 0 | 0
Significant Other Observable Inputs (Level 2) [Member] |  |
Deferred Compensation Plans [Abstract] |  |
Deferred compensation plans | 106,387 | 86,054
Liabilities: |  |
Contingent consideration | 0 | 0
Significant Unobservable Inputs (Level 3) [Member] |  |
Deferred Compensation Plans [Abstract] |  |
Deferred compensation plans | 0 | 0
Liabilities: |  |
Contingent consideration | 19,671 | 18,881
Corporate Owned Life Insurance [Member] |  |
Deferred Compensation Plans [Abstract] |  |
Deferred compensation plans | 106,337 | 86,004
Corporate Owned Life Insurance [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] |  |
Deferred Compensation Plans [Abstract] |  |
Deferred compensation plans | 0 | 0
Corporate Owned Life Insurance [Member] | Significant Other Observable Inputs (Level 2) [Member] |  |
Deferred Compensation Plans [Abstract] |  |
Deferred compensation plans | 106,337 | 86,004
Corporate Owned Life Insurance [Member] | Significant Unobservable Inputs (Level 3) [Member] |  |
Deferred Compensation Plans [Abstract] |  |
Deferred compensation plans | 0 | 0
Money Market Funds [Member] |  |
Deferred Compensation Plans [Abstract] |  |
Deferred compensation plans | 559 | 2,515
Money Market Funds [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] |  |
Deferred Compensation Plans [Abstract] |  |
Deferred compensation plans | 559 | 2,515
Money Market Funds [Member] | Significant Other Observable Inputs (Level 2) [Member] |  |
Deferred Compensation Plans [Abstract] |  |
Deferred compensation plans | 0 | 0
Money Market Funds [Member] | Significant Unobservable Inputs (Level 3) [Member] |  |
Deferred Compensation Plans [Abstract] |  |
Deferred compensation plans | 0 | 0
Equity Securities [Member] |  |
Deferred Compensation Plans [Abstract] |  |
Deferred compensation plans | 2,286 | 1,832
Equity Securities [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] |  |
Deferred Compensation Plans [Abstract] |  |
Deferred compensation plans | 2,286 | 1,832
Equity Securities [Member] | Significant Other Observable Inputs (Level 2) [Member] |  |
Deferred Compensation Plans [Abstract] |  |
Deferred compensation plans | 0 | 0
Equity Securities [Member] | Significant Unobservable Inputs (Level 3) [Member] |  |
Deferred Compensation Plans [Abstract] |  |
Deferred compensation plans | 0 | 0
Equity Funds [Member] |  |
Deferred Compensation Plans [Abstract] |  |
Deferred compensation plans | 1,925 | 1,758
Equity Funds [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] |  |
Deferred Compensation Plans [Abstract] |  |
Deferred compensation plans | 1,925 | 1,758
Equity Funds [Member] | Significant Other Observable Inputs (Level 2) [Member] |  |
Deferred Compensation Plans [Abstract] |  |
Deferred compensation plans | 0 | 0
Equity Funds [Member] | Significant Unobservable Inputs (Level 3) [Member] |  |
Deferred Compensation Plans [Abstract] |  |
Deferred compensation plans | 0 | 0
Other Defined Deferred Compensation Plan [Member] |  |
Deferred Compensation Plans [Abstract] |  |
Deferred compensation plans | 1,278 | 1,093
Other Defined Deferred Compensation Plan [Member] | Quoted Prices in Active Markets for Identical Assets (Level 1) [Member] |  |
Deferred Compensation Plans [Abstract] |  |
Deferred compensation plans | 1,228 | 1,043
Other Defined Deferred Compensation Plan [Member] | Significant Other Observable Inputs (Level 2) [Member] |  |
Deferred Compensation Plans [Abstract] |  |
Deferred compensation plans | 50 | 50
Other Defined Deferred Compensation Plan [Member] | Significant Unobservable Inputs (Level 3) [Member] |  |
Deferred Compensation Plans [Abstract] |  |
Deferred compensation plans | $ 0 | $ 0

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